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Events on Friday 31 May 1889 1
1889Johnstown FloodDam failure kills over 2,200 in PennsylvaniaThe South Fork Dam above Johnstown, Pennsylvania, collapsed after days of heavy rain, sending a wall of water through the town and killing more than 2,200 people. It remains one of the deadliest disasters in United States history and prompted Clara Barton's American Red Cross to mount its first major disaster relief effort.